Montana home charging cost for the 2027 Audi A6 e-tron ultra

At Montana's residential electricity rate of 13.77¢/kWh, a 2027 Audi A6 e-tron ultra (rated 26.5 kWh per 100 miles by the EPA) costs $3.64 to drive 100 miles on home charging, against $16.02 for the same distance in a car averaging 25.5 mpg on gasoline at $4.085/gallon. Charging at home costs a fraction of what gas would here: 77.3% less than gas per mile, here specifically.

2027 Audi A6 e-tron ultra: yearly cost in Montana

At fueleconomy.gov's default of 15,000 annual miles, the 2027 Audi A6 e-tron ultra costs roughly $547 a year to charge at home in Montana, against roughly $2,403 a year for an equivalent gas car. That's a savings of about $1,856 a year.

Filling up the 2027 Audi A6 e-tron ultra, in dollars

Covering the 2027 Audi A6 e-tron ultra's EPA-rated 395-mile range takes about 104.5 kWh, which costs about $14.39 at Montana's residential rate — figured from the EPA's own combined range and consumption numbers, not the pack's nameplate capacity.

2027 Audi A6 e-tron ultra in Montana, ranked

This combination ranks 304 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The Audi A6 e-tron ultra alone ranks 14 of 400 models for efficiency; Montana alone ranks 10 of 51 states for electricity price.

Next step: home charger installation

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

Line up a few Montana electrician quotes for Level 2 install before you commit either way.

Where these figures come from

The methodology guide names the exact EIA and EPA tables behind this page's numbers. Montana's 13.77¢/kWh rate ranks 10 of 51 states; the state rate guide lays out the full spread.